MULTILAYER COIL COMPONENT AND ITS MANUFACTURING METHOD

WIPO Patent Application WO/2005/036566

A1

A multilayer coil component having a small size and a small thickness, exhibiting a high L providing efficiency, and free of deterioration of the insulation resistance between via holes, and its manufacturing method are disclosed. A multilayer coil component (1) comprises a ceramic multilayer body (5) having a shape of a generally rectangular solid and incorporating a coil conductor (4) which is composed of band-shaped electrodes (2) and via holes (3) interconnecting the ends of the band-shaped electrodes (2). The axial direction of the coil conductor (4) agrees with the width direction Z of the ceramic multilayer body (5) perpendicular to the multilayer direction (thickness direction) X and the length direction Y of the ceramic multilayer body (5). Also disclosed is a manufacturing method comprising a step of stacking a ceramic green sheet (7) where band-shaped electrodes (2) or/and via holes (3) are formed and another ceramic green sheet (7) where a conductor pattern to serve as the base of an external electrode (6) is printed, and then compression-bonding and baking the stack.

MAEDA EIICHI (JP)
TANAKA HIROSHI (JP)
YAMAMOTO TAKAHIRO (JP)

PCT/JP2004/012987

April 21, 2005

September 07, 2004

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MURATA MANUFACTURING CO (JP)
MAEDA EIICHI (JP)
TANAKA HIROSHI (JP)
YAMAMOTO TAKAHIRO (JP)

H01F17/00; H01F27/29; H01F41/04; (IPC1-7): H01F17/00

JP2000348939A

2000-12-15

Machida, Kesaji (Nishinakajima 6-chome Yodogawa-k, Osaka-shi Osaka, JP)

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